'Bold' can mean courageous as you stated, but that usage is a little old-fashioned - we are far more likely to say 'brave' in modern English. I'm not saying that use of 'bold' is archaic or out of use, but it's associated with past times, like times of chivalry - we'd say that a knight was bold, but a modern soldier was brave.
More often than not, 'bold' in modern speech means highly ambitious, or supremely confident. For example, a 'bold attempt' could mean an attempt that was risky but successful, or one that was highly ambitious but failed.
In either case, boldness is a human quality, and while it can be used as an adjective to describe something abstract (eg 'a bold attempt') the suggestion is that the persons behind it were the confident, optimistic ones. It would be helpful to know the wider context of what you are trying to say, but at the moment it doesn't sound right - I don't see how an 'issue' (or an aspect of it) can be bold, because an issue is a situation, not an action or an attempt. And there would need to be someone behind the action to ascribe the boldness to.